Alkaline leaching of vanadium bearing residues
US4640823A · kind A · utility
3Cited by
5References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 1986 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Mar 13, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process is provided for the recovery of vanadium values from vanadium-bearing residues, such as fly ash, boiler ash and scrubber residues from the combustion of crude oil fractions. The process employs a combination of alkaline metal bases, such as sodium carbonate and sodium hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.